 import {getLyric} from 'api/song'
 import {ERR_OK} from 'api/config'
 import {Base64} from 'js-base64'

export default class Song {
  constructor({ id, mid, singer, name, album, duration, image, url }) {
    this.id = id
    this.mid = mid
    this.singer = singer
    this.name = name
    this.album = album
    this.duration = duration
    this.image = image
    this.url = url
  }
  getLyric(){
    if(this.lyric){
        return Promise.resolve(this.lyric)
    }
    return new Promise((resolve,reject)=>{
       getLyric(this.mid).then((res)=>{
       if(res.retcode===ERR_OK){
           this.lyric=Base64.decode(res.lyric)
           console.log(this.lyric)
           resolve(this.lyric)
           }else{
               reject('no lyric')
           }
      })     
    })
   }
}

export function createSong(musicData) {
  return new Song({
    id: musicData.songid,
    mid: musicData.songmid,
    singer: filterSinger(musicData.singer),
    name: musicData.songname,
    album: musicData.albumname,
    duration: musicData.interval,
    image: `https://y.gtimg.cn/music/photo_new/T002R300x300M000${musicData.albummid}.jpg?max_age=2592000`,
    url: `http://ws.stream.qqmusic.qq.com/${musicData.songid}.m4a?fromtag=46`
  })
}

function filterSinger(singer) {
  let ret = []
  if (!singer) {
    return ''
  }
  singer.forEach((s) => {
    ret.push(s.name)
  })
  return ret.join('/')
}
